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How do I check the difference, in seconds, between two dates?
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if you want to compute differences between two known dates, use total_seconds like this:
import datetime as dt
a = dt.datetime(2013,12,30,23,59,59)
b = dt.datetime(2013,12,31,23,59,59)
(b-a).total_seconds()
86400.0
#note that seconds doesn't give you what you want:
(...
Creating a textarea with auto-resize
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It does! Made a jsfiddle for ya: jsfiddle.net/CbqFv It now works in Chrome, Firefox, and IE8 - although it is a little glitchy in IE8. As you increase or decrease number of lines it freaks out a little. As you might have seen in the autoresize plugin for jQuery, they work around ...
How to define a two-dimensional array?
...w, h = 8, 5;
Matrix = [[0 for x in range(w)] for y in range(h)]
You can now add items to the list:
Matrix[0][0] = 1
Matrix[6][0] = 3 # error! range...
Matrix[0][6] = 3 # valid
Note that the matrix is "y" address major, in other words, the "y index" comes before the "x index".
print Matrix[0]...
How can I get the count of milliseconds since midnight for the current?
... current time as a number of milliseconds (not count from epoch).
Instant.now() // Get current moment in UTC, then…
.get( ChronoField.MILLI_OF_SECOND ) // interrogate a `TemporalField`.
2017-04-25T03:01:14.113Z → 113
Get the fractional second in nan...
How to use Chrome's network debugger with redirects
...e network log is preserved on page load.
The little red dot on the left now has the purpose to switch network logging on and off completely.
Older versions
In older versions of Chrome (v21 here), there's a little, clickable red dot in the footer of the "Network" tab.
If you hover over it, ...
Edit and Continue: “Changes are not allowed when…”
... TypeMock Isolator (mocking framework) finally helped! Edit & Continue now works!!!
Here is the answer from TypeMock support:
After looking further into the edit
and continue issue, and conversing
about it with Microsoft, we reached
the conclusion it cannot be resolved
for Isolator....
Generate random numbers using C++11 random library
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@chris we all know the difference between a vector and a map, not everyone knows the difference between mt19937 and ranlux24, if someone managed to become a programmer without knowing what a vector and a dictionary are maybe they should hav...
How exactly do Django content types work?
...d you can do better. High five!
Enter the Content Types framework!
Well, now we're going to take a close look at our models and rework them to be more "reusable" and intuitive. Let's start by getting rid of the two foreign keys on our Comment model and replace them with a GenericForeignKey.
# ou...
ReadOnlyCollection or IEnumerable for exposing member collections?
...s it just me or is this an answer to a different question? It's useful to know this "solution", but the op has asked for a comparison between returning a ReadOnlyCollection and IEnumerable. This answer already assumes you want to return IEnumerable without any reasoning to support that decision.
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Apk location in New Android Studio
...ple who might search for answer to this same question, it is important to know what type of projects you are using in Studio.
Gradle
The default project type when creating new project, and the recommended one in general is Gradle.
For a new project called "Foo", the structure under the main folde...